RCW 59 refers to the Revised Code of Washington Title 59, which primarily deals with landlord-tenant laws in the state of Washington. This code outlines the rights and responsibilities of both landlords and tenants, covering aspects such as rental agreements, security deposits, and eviction procedures. The provisions in RCW 59 aim to protect tenants from unfair practices while ensuring landlords can manage their properties effectively. It includes regulations on lease terms, maintenance obligations, and the process for resolving disputes, promoting a fair rental market in Washington.